Via Options in the main menu you access the main options of the program.

Selection folder
To limit excessive navigating in folder structures you can give the initial folder of Txt2dir browsers like the selection panel

Invalid characters
When creating folder and file names, Windows does not accept every character. Some characters are invalid. If Txt2dir meets such a character then it can optionnally replace such a character by something you choose. For instance you can replace them by EDITMANUALLY or TEMP or by an underscore ( _ ) or by nothing (leave field empty) and so on... .
Example: